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(Reference retrieved automatically from SciELO through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Distribution of Archaeal and Bacterial communities in a subtropical reservoir

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Author(s):
Laís Américo Soares ; André Cordeiro Alves Dos Santos ; Iolanda Cristina Silveira Duarte ; Emiliana Manesco Romagnoli ; Maria do Carmo Calijuri
Total Authors: 5
Document type: Journal article
Source: Acta Limnol. Bras.; v. 27, n. 4, p. 411-420, Dez. 2015.
Abstract

Abstract Aim: Microbial communities play a central role in environmental process such as organic matter mineralization and the nutrient cycling process in aquatic ecosystems. Despite their ecological importance, variability of the structure of archaeal and bacterial communities in freshwater remains understudied. Methods In the present study we investigated the richness and density of archaea and bacteria in the water column and sediments of the Itupararanga Reservoir. We also evaluated the relationship between the communities and the biotic and abiotic characteristics. Samples were taken at five depths in the water column next to the dam and three depths next to the reservoir entrance. Results PCR-DGGE evaluation of the archaeal and bacterial communities showed that both were present in the water column, even in oxygenated conditions. Conclusions The density of the bacteria (qPCR) was greater than that of the archaea, a result of the higher metabolic plasticity of bacteria compared with archaea. (AU)

FAPESP's process: 08/55636-9 - Contribution to carbon cycle in Itupararanga reservoir as subsidy for sustainability in Sorocaba watershed, São Paulo, Brazil
Grantee:Maria Do Carmo Calijuri
Support type: Research Projects - Thematic Grants